825996871 has 6 divisors (see below), whose sum is σ = 960853560. Its totient is φ = 707997276.

The previous prime is 825996841. The next prime is 825996943. The reversal of 825996871 is 178699528.

It is not a de Polignac number, because 825996871 - 2¹¹ = 825994823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825996841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8428491 + ... + 8428588.

It is an arithmetic number, because the mean of its divisors is an integer number (160142260).

Almost surely, 2^825996871 is an apocalyptic number.

825996871 is a deficient number, since it is larger than the sum of its proper divisors (134856689).

825996871 is a wasteful number, since it uses less digits than its factorization.

825996871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16857093 (or 16857086 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The square root of 825996871 is about 28740.1612904312. The cubic root of 825996871 is about 938.2663348549.

The spelling of 825996871 in words is "eight hundred twenty-five million, nine hundred ninety-six thousand, eight hundred seventy-one".